Dear Mr./Ms. Bossname,
I very much enjoyed working at XYZ Company last summer. Its mission aligns perfectly with my career goals, and I greatly value the opportunity to work alongside people who are passionate about this field.
Unfortunately, I won’t be able to return to the weekend Widget Input position this summer unless my pay is increased. Due to the rising cost of gas, along with inflation in general, I just can’t make it work at the $XX hourly rate. I’m hoping you can instead budget for a pay rate of $XX.
Were it not for the commute, and the other financial issues I mentioned, I would definitely be returning. I hope that you are able to make this work for the both of us.
Please let me know at your earliest convenience, as my second job has offered me more hours at a rate of $XX per hour if I make myself available on weekends. Thank you very much for your consideration.